An explosion of trading in equity options among day-traders is suspected of helping to fuel the rally in U.S. stocks this summer. Chris Murphy, co-head of derivatives strategy at Susquehanna International Group, joins this week’s episode of the “What Goes Up” podcast to explain what happened.

Mentioned in this podcast:

The Wild Summer of 2020 Turned Small Investors Into Whales

Reddit's Stock Threads Become a Must-Read on Wall Street

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